What is PostGIS?
PostGIS is a powerful spatial database extender that enhances the capabilities of the PostgreSQL object-relational database. By adding support for geographic objects, PostGIS allows users to seamlessly run location-based queries using standard SQL. This extends the functionality of PostgreSQL, transforming it into a robust spatial database backend suitable for a wide range of geographic information systems (GIS) applications, much like ESRI's SDE
Highlights
- Spatial data support: PostGIS enables the storage, management, and analysis of geographic data within the PostgreSQL database
- Location-based querying: Users can perform advanced spatial queries, such as proximity searches, intersection analysis, and spatial aggregations, directly through SQL
- Broad feature set: PostGIS offers a comprehensive set of spatial functions and data types, often exceeding the capabilities of other competing spatial databases like Oracle Locator/Spatial and SQL Server
- Open-source: As an open-source project, PostGIS benefits from a large and active community, providing extensive documentation, support, and the ability to customize and extend the tool as needed.